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Claude 3.7 Sonnet vs Claude Opus 4

Anthropic · released

Wins 0 of 5 areas

—

Anthropic · released

Wins 4 of 5 areas

Coding · Reasoning · Long documents · Following instructions

Claude Opus 4 is the stronger all-rounder.Claude 3.7 Sonnet is cheaper.

Scores updated · 32 tests both models report · How we compare

Where each one wins

Tests won in each of the five areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.

Long documents rests on a single test.

What it costs

Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.

Claude 3.7 Sonnet$3.00 to read · $15.00 to write$18Price from Artificial Analysis
Claude Opus 4$15.00 to read · $75.00 to write$90Price from Anthropic's own price page

Claude 3.7 Sonnet costs 80% less for the same work.

The biggest differences

The tests each model wins by the widest margin, up to three each. Scores are out of 100.

Where Claude Opus 4 pulls ahead

  • Reasons across sets of long documentsAA-LCR+17.6points aheadClaude Opus 469.3Claude 3.7 Sonnet51.7
  • Common-sense trick questionsSimpleBench+12.4points aheadClaude Opus 458.8Claude 3.7 Sonnet46.4
  • Hard command-line tasks in a real terminalTerminal-Bench Hard+9.9points aheadClaude Opus 431.1Claude 3.7 Sonnet21.2

Where Claude 3.7 Sonnet pulls ahead

  • College exam questions with charts, maps and diagramsMMMU+1.3points aheadClaude 3.7 Sonnet75Claude Opus 473.7

Every test, side by side

All 32 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingClaude Opus 4

Full coding ranking

ReasoningClaude Opus 4

Full reasoning ranking

Images and chartsEven
  • LMArena · VisionClaude Opus 4 by 23 rating points11691192+23 rating
  • MMMUClaude 3.7 Sonnet by 1.37573.7+1.3

Full images and charts ranking

Long documentsClaude Opus 4
  • AA-LCRClaude Opus 4 by 17.651.769.3+17.6

Full long documents ranking

Following instructionsClaude Opus 4

Full following instructions ranking

Other results21 tests, not counted

Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.

Questions people ask

Which is better, Claude 3.7 Sonnet or Claude Opus 4?

Claude Opus 4 wins four of the five areas where both have results: coding, reasoning, long documents and following instructions. Claude 3.7 Sonnet wins none, but costs 80% less. They are level on images and charts.

Which is better for coding?

Claude Opus 4. It wins 2 of the 3 coding tests both models report; Claude 3.7 Sonnet wins none, and 1 is a tie.

Which is cheaper?

Claude 3.7 Sonnet costs $3.00 per million input tokens and $15.00 per million output tokens; Claude Opus 4 costs $15.00 and $75.00. That makes Claude 3.7 Sonnet about 80% cheaper for the same work.

How do you compare the two?

We use the 32 benchmark tests both models have published scores on. The verdict counts the 11 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 21 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.